Acceptance of Extraneous Untrusted Data With Trusted Data in GitLab Enterprise Edition - CVE-2026-15387
Published: August 27, 2026
Vulnerability identifier: #VU145886
CSH Severity: Medium
CVSS v4: 5.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-15387
CWE-ID: CWE-349
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to compromise the target system.
The vulnerability exists due to improper handling of untrusted data in Pipeline Execution Policies. A remote user can influence the execution environment of Pipeline Execution Policy enforcement jobs.
Affected software
GitLab Enterprise Edition
How to mitigate CVE-2026-15387
Install updates from vendor's website.
GitLab Enterprise Edition - addressed in versions 19.1.7, 19.2.5, 19.3.1